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In vivo incorporation of [14C]leucine into brain protein of mice treated with methylmercury and thiol complexes of methylmercury. 1987

P H Fair, and J E Balthrop, and J L Wade, and S Braddon-Galloway

The effect of methylmercury and thiol complexes of methylmercury on inhibition of protein synthesis was evaluated. Mice were injected (i.p.) with the following treatments: methylmercuric chloride, methylmercury-glutathione, methylmercury-cysteinylglycine and control (vehicle) for 10 days. Ten animals from each group were injected with [14C]leucine 90 min prior to death. The brains were removed and the extracted protein was subjected to liquid scintillation analysis. Mice receiving the methylmercury and methylmercury-glutathione treatments exhibited significantly greater weight loss than the control while the methylmercury-cysteinylglycine treatment was not significantly different than the control. Incorporation of [14C]leucine into brain protein was significantly depressed in the methylmercury (81% of control) and the methylmercury-glutathione (79% of control) treatments. Protein synthesis in mice receiving the methylmercury-cysteinylglycine complex although not significantly different than the methylmercury treatments was only 92% of the control mice.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D007930 Leucine An essential branched-chain amino acid important for hemoglobin formation. L-Leucine,Leucine, L-Isomer,L-Isomer Leucine,Leucine, L Isomer
D008767 Methylmercury Compounds Organic compounds in which mercury is attached to a methyl group. Methyl Mercury Compounds,Compounds, Methyl Mercury,Compounds, Methylmercury,Mercury Compounds, Methyl
D008813 Mice, Inbred ICR An inbred strain of mouse that is used as a general purpose research strain, for therapeutic drug testing, and for the genetic analysis of CARCINOGEN-induced COLON CANCER. Mice, Inbred ICRC,Mice, ICR,Mouse, ICR,Mouse, Inbred ICR,Mouse, Inbred ICRC,ICR Mice,ICR Mice, Inbred,ICR Mouse,ICR Mouse, Inbred,ICRC Mice, Inbred,ICRC Mouse, Inbred,Inbred ICR Mice,Inbred ICR Mouse,Inbred ICRC Mice,Inbred ICRC Mouse
D009419 Nerve Tissue Proteins Proteins, Nerve Tissue,Tissue Proteins, Nerve
D001921 Brain The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM. Encephalon
D004151 Dipeptides Peptides composed of two amino acid units. Dipeptide
D005260 Female Females
D005978 Glutathione A tripeptide with many roles in cells. It conjugates to drugs to make them more soluble for excretion, is a cofactor for some enzymes, is involved in protein disulfide bond rearrangement and reduces peroxides. Reduced Glutathione,gamma-L-Glu-L-Cys-Gly,gamma-L-Glutamyl-L-Cysteinylglycine,Glutathione, Reduced,gamma L Glu L Cys Gly,gamma L Glutamyl L Cysteinylglycine
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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